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Finding the Fourth Proportional to 496,607.06, 685,333.30 and 281,756.18

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Solution

The fourth proportional to 496,607.06, 685,333.30 and 281,756.18 is: 388,832.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,607.06 : 685,333.30 = 281,756.18 : x
  2. Step 2: Convert to fraction form
    496,607.06/685,333.30 = 281,756.18/x
  3. Step 3: Cross multiply
    496,607.06x = 685,333.30 × 281,756.18
  4. Step 4: Simplify right side
    496,607.06x = 193,096,892,634.79
  5. Step 5: Solve for x
    x = 193,096,892,634.79/496,607.06
  6. Step 6: Final answer
    x = 388,832.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.